1949-03-31 — Page 10

1'a 10

THE CHUNA MAIL, THURSDAY, MARCH 31, 1040.

Leaders in their Class

ENGINEERING PAGE

New British Navigation

DIESEL Aid Device

ENGINES

for

Beltain's Minister of Trans- port has officially Inaugurated The lane identification service of the Decen Navigator system at the master station of the English chain at Puckeridge, Herfordshire.

The new service marks com pletion of a complex electronic engineering enterprise. Only

ALL STATIONARY three years ago it was thought

& MARINE DUTIES

Engines bearing these luter-

nationally famous warnes are doing splendid service throughs

out the world on land and non,

There is a size and type for every duty. They are supplied in a convenient range of powers

from

Dj 1,440 BHP.

Sole Agents

ARNHOLD & CO., LTD.

HOLLAND HOUSE HONG KONG

BRITISH MADE G.F. MALLEABLE TUBE FITTINGS HAVING PERFECT THREADS AND REAL MALLEABILITY. RELIABLE FOR STEAM, WATER, GAS, OIL AND AIR.

Every fitting individually tested to 360 lbs. per square inch.

STOCKS CARRIED

SIBER HEGNER & CO., LTD.

St. George's Bldg.

Telephone 22625

کرنا

that the incorporation of Inni Plentification would take ten years to accomplish. The tech- nical problems were considered niment insoluble by

by many experts, chiefly because electronic control

reaure far higher order

was required than bad previously been achieved. The yuter har always eni- ployed scillators at

the three lave stations which are kep continuously ut the

station to one thousandth of a

of a microsecond, that one-tousand-millionth of D areond. This apparatus hail to bu |designed to operate autoniatically

24 hours a day without failure.

incronists with one

The new service makes it poinİ- ble for ships or aircrafl

the coverage aren of the cost

sot the meters of their Decca re- ceivers to the correct tone.

This

had previously breu effect- only by the use of celestinl navigation on clear nights or by the use of other navigational aids where available. In other words, the navigator of a ship or aircraft had to know initially his proce position before he could use the navigator system.

But the facilities

now pro-

valed will make it possible for

the navigator to set his meters

hours

A

9 Cub. Yard Mechanical Shovel fitted with a Radjal Pump,

Problem Of Lubrication

On Scientific Basis Considered Important

The

The treatment of the problem of lubrication on a scientific basis is a comparatively modern in- novation, but it is now generally accepted as an integral part of engineering practice. realisation has come that the lack of a few ounces of grease at the right place and time can cause, through loss of production, a deficit of thousands of pounds and may have reper- cussions throughout an entire industrial or- ganisation.

This has tended to lead, as much f

The solution in this case has when entering the coverage area as possible, to the elimination of been a epulimus aatellite chain the chain and also to check the human element and its replaco-crying five grease guns running them af approximately one minutement by mechanical systems of rallel to the 'conveyor chains. interval, throughout the whole 24 lubrienfion; that the expense of "These

are autooulically of the day ns long as he installing these mechanical ays forced into contact with nipples of reuntos within the average area. tems is rapidly envered by econo- the main chains and are re-charged

Another Decen chain, centred on mies In man hours can be very on their return run. Denmark, came into service last simply proved.

Continuous grease feed is only October, and it is hoped to provide As an example-n certain textile demanded where extremely high

with

identification 1th Lane

milli carried out an investigation londs are to be supported, for ex- year, This chain covers a consider on time expender In effecting ample rolling mill bearings. able part of the Weners Baltic, lubrication of some 500 splanting all could suitain the coastal waters of Denmark frames, half of which were hand and together with the English oiled and the other half equipped

of the North with centralised lubrication.

it

chain, largo areas ぶいれ

this

Lanterns Wanted

In Asia, Africa

The time required for haud oll ing was 48 man hours a week; the time expended in operating contralised lubrication 1 hours

a week; unnecessary time expond, ed 40 and a half man hours a week.

The Union Metni Works, Limited,' A strong argument in aften makers of pressure lanterns, has made that the cheapness of native found an Increasing demand for Labour is such as to offset the ex its products in countries in South-pense Involved in fitting mechan- Kast Asin, the Middle East and cat lubrication. This, of course, Africa,

is definitely not so as the lower 17|the cost of labour, the more prone With its general office at Kayamally Building, the Unionit is error and the greater the Metal Works factory at 522 Castle risk of breakdown due to faulty. Peak Road is turning out 700 lubrication, lanterne month. Known as Solar and Unionite brands, these lan. teras are of the 200 and 300 candle power varieties.

No

the numerQUM

A 30 Inch x 60 inch sugar mit by Blairs of Glasgow. Mill and crusher lubricated by Tecalamit "Brentford" mechanical lubricator,

Accent On

Safety In Industries

Some instruments, recently Marketed in Britain, have the primary functions of increasing safety in many Industries.

Pilot Engineers Limited, a new ubsidiary of Oldham and Son Limited, have

designed a Explorimeter to provide a simple and reliable

new

of testing the Halility to explosion of an at- mosphere containing a mixture of inflammable gas or vapour with air or oxygen. This new Instrument is particularly suit- able for the delection of unsafe Concentrations of ADREN below the surface, in enclosed

places or tanks. It will detect and Measure concentrations of gus well below the lower explosive limite

new

The usefulness of the Explosi. meter is greatly enhanced by another

instrument, the Multi-Point Recurder and Alarm System, which provides in a sint. gle unit a mouns whereby infor- mation from as many as six re- mote points can be observed in a central control

room. The new instruments have use- fut applications not only where inflammable gares or vapours

may occur in concentration which may be dangerous from an explo sion point of view or toxic to the operating personnel,

but

also

cord

M

where recovery of solvents in in dichted. Here the recorder can be arranged to operate a visible re- chart, red, green and amber signal lamps and un audible njorm when the

Vapour concentration exceeds

a predetermined limit. Another new instrument, the Combustimeter, s studying the

for evaporation of inflammable liquids. It has proved an extremely valu able Instrument in research work, permitting steady and continuous readings of the relative combus- tibility of mixtures under investi- gation.

The high sensitivity of

the instrument is shown by the fact that it can observe a concon. tration of less than one part of gos In 10,000 of alr.

Science And Electronics

Electronics in scientific re-

scorch has become one of the misst lively and fruitful branches of selence.

used

Industry electronics can be for detecting internal flaws in eastings, impurities in plasties and textiles, and moisture in stored grain, as well as the presence of hurmtul rays. Electronics muy also be used for many other pur poses. Britain's Department of Selentific and Industrial Research has set up an advisory group of experts who are ready to visit arms and assist them where the possibility of using automatic elec- Multipoint Battery tronic and other equipment in in

has been dustrial processes has often result- battery which specially designed for the lubrica ed in remarkable economy.

An electronic timer to be used tion of heavy duty plant of this in a number of processes, such as the making of The basic principle behind all nature, such as rolling mill necks,

mechanical systems of lubrication rock crushers etc, is the Multipoint lithography, blue-printing, high-

A great rehuction in mainten load which ro encountered, nace costs is achieved where me-wherens gresse is able to keep the chanical means are used by reason bearing mirfaces separated during of the fact that the quantity of period of maximum loading. Capitalised at HK$1,000,000, lubricants employed is positively the Union Metals Works used to measured and any risk of pilfer- banufacturers of bicycles beage done away with.

fore the war. In recent years it has switched to

pressure lauteras. Thexo lanterns,

ol,

Basic Principle

A

It is claimed, consists of a pump-either hand or 1, consists of a number of cylin- frequency welding and inductioti |

consume less fuel and give more

light than similar ones on the market.

They are made of heavier gauge brass and are chromium-plated throughout.

BUILDING SUPPLIES

STOCKS AVAILABLE

"TURNALL" "CRANE"

"YORKSHIRE”

"CEMENTONE”

"PUDLO" "HEATRAE" "EXPAMET" "A.I."

"FOAMITE

"NEWALLS" "OZONO" "FALCO "ELECTROMATIC "RELIANCE" "PHILPLUG" "LEE HOWL" "HURSEAL" "RUBBERLOCK" -"CRITTALLWAY

"CHATWOOD".

Asbestos Cement Products.

Boilors, Domestic.

Copper Tubes & Fittings.

Cement Colouring Powder.

Cament Waterproofing Powder

Electric Water Heaters. Exponded Motal,

Fire Places.

Firo Fighting Equipment.

Insulation: Heat, Cold & Sound, Ozone Generators.

Oil Cooking Ranges.

Oil Burners, Fully Automatic.

Oil Burners, Range. Plugging Materials.

Pumping Equipment,

Radiators, Qil Loaded Electric, Rubber Flooring Tiles. Windows & Doors, Metal. Vault Doors & Safes.

DODWELL & CO., LTD.

MACHINERY

Hong Kong & Shanghal Bank Bull

Hopg

TING

A good example of a complete mechanical oll-feed system ไม shown in the Brentford Mochan

ical lubricator. This consists of grease through A. serios of

furnaces, where high accuracy in power operated-dollvering an acders mounted on the mal frame curatoly measured

essential, has been repetition quantity of with dial gauges indicating the placed on the market recently by lubricant at a given interval or

working pressure in the individual when required.

driven Electro Methods, Lid. This sp 1laies.

electrically An

paratus has a time range of one- Brantford Labricator is situated fourth of a second to 80 seconds, at the bare and oil pressure from and within these Lanits smooth this lubricator is ved to force control is possible by turning a

dial pipelines to its appropriate bear-

A. standard electronle counter is inFor applications where accuracy Television Ltd. The counter has being manufactured by Cinema down to a very fino limit in re been designed specially for indus- quired, a number of similar types trial purposes, and enables count- of pump bave been developed; for ing to be effected at rates up to example, the radial, grease pump. 30,000 counts a minute. It can be used extensively on all types of used also to distinguish between heavy outdoor plant. is suitable articles different in size, shape, for all grades of lubricant cap colour, weight or electrical able of collapso under their own alstance. The equipment consisty weight.

of a photo-electric cell and light source and the instrument proper

A close up of the Brentford lubricator serving 20 points

It corisists of from one to 20 the pump units mounted round periphery of the pump bed in the grease container and actuated by a worm driven eccentrle.

For the delivery of soft grense from one lo. 20 units which are or heavy olls at pre-deterininci driven from a single driving shaft. Intervain to mach pieces of equip- and fed from a common reservoir, ment as cranes and elevators the The amount of lubricant, dell- Line-o-matic System has been pro- of pump, yored at each stroke per unit can. duced. By operation The varied frogi zero to a maxim

mechanically or by hand, a

grease in diapansed. through, each injector,

the in-

of 0.1 cc, white, the pump run-

plog

The Brentford Lost jector then seals itself off against

has been found to be the xultablo

number of

for of further supply of lubricant, and applications upon completion of a cyclo all ranging from excavators and road Injectors return to normal. rollers, through textile machinery For those types of machinery

all sorts, harbour pumping where, it is absolutely unneces Plant, Items of sugar refining me- sary, to install any form of the chanium, mumerous iron and steel |

lubrication, chanical

A great has heavy mining, saving in ume and labour working plant to nant.

been achieved through the layout As an example of a fully auto-of nipples in groups, the nipples matic grease feed system, mention themselves being, in fact, remote might be made of a step forward from the bearing which the lub In the solution of the problem of rfcate. lubrication of conveyor chains.

have covered in this survey Small chairs can be protected, and only a few of the more recent lubricated by the oll bath method developments in industrial lub- but those which geed it mostrication, those of our readets who large tonyayor chains maying would like to know more on this al, speeds or Go to 00 fest mine subject are advised: ita ut in uta tavo présented a vary did, touch, with the Lef{CHSD) salt problem,

Limited.

1

N

TCM

ESC

SHEFFIELO

Steel Tools, Drills,

Taps,

Dies,

Files, Hacksaw Blades, Lathe Tools,

Stocks held in Hong Kong.

ENGLISH STEEL CORPORATION LTD. SOLE AGENTS:

SWIRE & MACLAINE LTD.

ENGINEERING DEPARTMENT L.CONNAUGHT RD.C. TEL... 30331.

BRC

FABRIC

APB 14

ELECTRICALLY, CROSS-WELDED

STEEL WIRE MESH

IN ROLLS OR SHEETS FOR CONCRETE REINFORCEMENT

Stock Available

DAVIE, BOAG & CO., LTD.

Chartered Bank Bldg.

Agents for:

Tol. 28117

BRITISH REINFORCED CONCRETE ENG. co.,LTD.

. LEVELS

K+E

KEUFFEL & ESSER CO.

AVAILABLE STOCKS

·FORESTRY COMPASS"

TRANSITS

STEEL TAPES 'DRAWING SETS TRACING PAPER

SLIDE RULES

AGENTS & DISTRIBUTORS

ANDERSEN, MEYER & COMPANY, LTD.

DAVID KÕUŠE

U. SPALINGER & CO., LTD.

Eng. Dept.

JA, Wyndham St.

Remington

"AIR CONDITIONING.

Models:

THE PROFESSIONAL

THE DIRECTOR

THE OVERTON.

THE CLIMATE CONTROLLER

TEL: 28091.

Sales & Servico

Tel: 32785

34 H.P. Window Type

1% H.P. Cabinet 194 H.P.

"

11

14 H.P. Industrial

FOR EFFICIENCY & BETTER LIVING- USE

REMINGTON AIR CONDITIONERS

་